Abstract:
:This study reports for the first time (a) the longitudinal profile of the transmembrane potential (mDeltapsi) of single mitochondria using a Nernstian fluorescent probe and (b) the distribution of mDeltapsi fluctuations of mitochondria undergoing permanent depolarization. Our findings show that (1) mitochondria in different energetic conditions coexist in the same cell, (2) mDeltapsi is rather homogeneous along the entire length of single mitochondria, (3) mDeltapsi is not influenced by the surrounding cytoplasmic environment and (4) mDeltapsi fluctuations occur simultaneously in groups of mitochondria connected in a network. Taken together, these findings provide further evidence for a functional relationship between mitochondrial arrangement and energetic condition.
journal_name
FEBS Lettjournal_title
FEBS lettersauthors
Diaz G,Falchi AM,Gremo F,Isola R,Diana Adoi
10.1016/s0014-5793(00)01683-5keywords:
subject
Has Abstractpub_date
2000-06-23 00:00:00pages
218-24issue
3eissn
0014-5793issn
1873-3468pii
S0014-5793(00)01683-5journal_volume
475pub_type
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